• Atlantic Gale Warning

    From Mike Powell@1:2320/106 to All on Tue Apr 14 07:41:12 2026
    999
    AXNT20 KNHC 140948
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Tue Apr 14 2026

    Tropical Weather Discussion for North America, Central America
    Gulf of America, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 31N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through 0945 UTC.

    ...SPECIAL FEATURES...

    Gale Warning E of 35W: Meteo-France has a Gale Warning in effect
    for the marine zone of Agadir through 14/12Z. These conditions
    are due to the pressure gradient between high pressure located
    NW of the Madeira Islands near 34N19W and relatively lower
    pressures in NW Africa. Also, expect severe gusts, and very rough
    seas in long period NW swell. Please refer to the Meteo-France
    High Seas Forecast product, listed on the website at
    https://wwmiws.wmo.int for more information.

    ...MONSOON TROUGH/ITCZ...

    The monsoon trough enters the Atlantic near 10.5N15W, then continues
    southward to 02N20W to 01N27W. The ITCZ extends from 01N27W to NE
    Brazil near 01S48W. Scattered moderate convection is noted S of
    05N between 18W and 50W.

    ...GULF OF AMERICA...

    A ridge dominates the Gulf region. Under the influence of this
    system, fresh to strong NE to E winds and moderate to rough seas
    are noted over the SE Gulf, including the Straits of Florida.
    Similar wind speeds are observed off the Yucatan peninsula,
    particularly from 20N to 23N between 88W and 92W. These winds are
    associated with a thermal trough. Moderate to locally fresh E to
    SE winds and moderate seas are observed elsewhere, except in the
    far NE Gulf where light to gentle winds and slight seas are
    occurring. Cold air stratocumulus clouds are moving across South
    Florida and the Straits of Florida into the SE Gulf.

    For the forecast, high pressure centered over the west-central
    Atlantic extends a ridge across Florida into the Gulf. This will
    maintain moderate to fresh E to SE winds and mostly moderate seas
    through Sat, except in the NE and N-central parts of the basin
    where mainly gentle to moderate winds and slight to moderate seas
    will prevail. Expect stronger winds to pulse across the SE part of
    the Gulf, including the Florida Straits, through this evening,
    and off the Yucatan Peninsula each night through Wed, driven by
    local effects associated with a thermal trough.

    ...CARIBBEAN SEA...

    A stationary front over the Atlantic located just N of Puerto Rico
    and a pre-frontal trough are helping to induce scattered showers
    and thunderstorms over the NE Caribbean, mainly N of 15N and E of
    70W. High pressure over the west-central Atlantic combined with
    the Colombian low supports fresh to strong trades in the south-
    central Caribbean where seas are 7 to 9 ft per altimeter data.
    Similar wind speeds are found in the Lee of Cuba, in the Windward
    Passage, and just S of the Dominican Republic. Moderate to locally
    fresh winds dominate the remainder of the basin. Seas are 6 to 8
    ft downwind of the Windward Passage, including between Haiti and
    Jamaica, and 5 to 7 ft in the Lee of Cuba. Moderate seas are noted elsewhere.

    For the forecast, high pressure over the west-central Atlantic combined
    with the Colombian low will maintain fresh to locally strong trade
    winds and rough seas over the south-central Caribbean and near the
    coast of Colombia through Wed night. Fresh to strong northeast winds
    and building seas will prevail south of Cuba, in the Windward Passage,
    and south of Hispaniola through Wed night as well. Winds and seas
    will diminish across the basin late in the week.

    ...ATLANTIC OCEAN...

    Please read the Special Features section about a Gale Warning off Morocco.

    As previously mentioned, a stationary front is just N of Puerto
    Rico generating scattered showers with embedded thunderstorms.
    Fresh to strong NE winds and seas of 8 to 12 ft are found near
    and behind the aforementioned frontal boundary, with the exception
    of moderate to locally fresh E winds and 4 to 6 ft seas off NE
    and central Florida. High pressure follows the front and extends a
    ridge across the western Atlantic and Florida into the Gulf of
    America. E of the front, high pressure of 1026 mb located NW of
    the Madeira Islands dominates the remainder of the Atlantic
    forecast region. Fresh to strong N to NE winds up to 30 kt, and
    seas up to 13 ft in long period NW swell are noted per scatterometer
    and altimeter data N of 20N and E of 20W, including the Canary
    Islands. Moderate to fresh winds and moderate to rough seas
    dominate the tropical Atlantic. Elsewhere, moderate or weaker
    winds and moderate seas prevail.

    For the forecast west of 55W, convection will continue along a
    stationary front that is weakening into a surface trough just N
    of Puerto Rico. The trough will drift west toward Hispaniola on
    Wed, and the SE Bahamas on Thu. Strong NE winds and rough seas
    will persist W of the trough, with conditions gradually improving
    toward the end of the work-week as the trough weakens.

    $$
    GR

    =3D =3D =3D =3D =3D =3D =3D
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    * Origin: Project Scorpio TEST (1:2320/106)